1. With stroller hanging buckle design, removable at any time, more convenient travel 2. External USB charging port, convenient to use 3. With a small storage bag, convenient to place keys, coins and other small objects 4. Large capacity, multiple pocket design, partition storage 5. Front bottle position, constant temperature aluminum foil material insulation 6. 3D honeycomb back shoulder straps, breathable cushioning cotton, back comfort 7. Rear hidden zipper pocket 8. Material: nylon 9. Weight: about 860g 10. Size: 39 x 29 x 16cm